Sash-lock.



A. ROTHSCHILD.

SASH LOCK.

APPLICATION FILED DEC. 11, 1914.

Patented Jan. 25, 1916.

AARON BOTHSCHILID, OF RICHMOND, VIRGINIA.

SASH-LOGK.

Application filed December 17, 1914.

To all 10 hom it may concern:

Be it known that l, AARON Rornsornnn, a citizen of the United States,residing at Richmond, in the county of Henrico and State of Virginia,have invented certain new and useful Improvements in Sash- Locks, ofwhich the following is a specification.

My invention relates to improvements in sash locks.

The object of my invention is to provide a sash lock which is adapted tolock a sash in a closed or partly open position, so that ventilation maybe obtained and yet rigidly holding the sash so that it can not befurther opened to allow any one entering through the window.

Another object of my invention is to provide a more simple, cheap andeifective lock of this character which is adapted to automaticallyrelease the bolt, so that the window will be locked when closed.

A still further object of my invention is to provide a more simple,cheap and effective lock of this character having certain details ofstructure hereinafter fully set forth.

in the accompanying drawings :Figure 1 is a perspective view of a windowsash showing my improved lock applied thereto; Fig. 2 is an enlargelvertical sectional view of Fig. 1; Fig. 3 is an enlarged perspectiveview of the lock showing the releasing and holding plate.

Referring now to the drawings, 1 represents the upper sash and 3 myimproved lock which is applied to the upper edge of the lower sash 2.The lock 3 is provided with a cylinder 4 in which operates a slidingbolt 5 normally held outwardly by a spring 6, clearly shown in Fig. 2 ofthe drawings. lhe outer end of the sliding bolt is provided with a knobor other means 5', by which the bolt is drawn outwardly by hand. Securedto the upper sash at one side is a plate 7, having the two openings 8and 9 arranged a few inches apart and into which the sliding bolt 7 isadapted to pass. The plate 7 at one side is provided with a lug 10, thepurpose of which will be later, described.

The cylinder 4- is provided with outwardly extending ears 11 and 12provided with openings and through which pass screws, by means of whichthe cylinder 1 is fastened to Copies of this patent may be obtained forfive cents each, by addressing the Specification of Letters Patent.

and 2 the lower sash Patented Jan. 25, 1916.

Serial No. 877,693.

the upper end of the lower sash 2. The said cylinder is provided with arecess 14, in which is secured the plate 15 which eX- tends outwardlyand is provided with a downwardly extending portion 16 which is normallyheld in a downward position by the spring of the metal of the plate andholds the sliding bolt in its retracted position within the cylinder 1.lhe said plate is provided with an outwardly and inwardly extendingportion 17, which is so arranged as to engage the lug 10 of the plate 7,which in the downward movement of the sash causes the downwardly turnedportion 16 of the plate to be moved upwardly out of the path of travelof the sliding bolt and releases the same.

When the sliding bolt is within the upper opening 8 of the plate 7, thesash is locked in an open position and when it is desired to lower thesash, the bolt is drawn outwardly by the knob or handle, and the plateautomatically locks the bolt in its retracted position. The sash is thenmoved downwardly and the outwardly extending portion 17 of the plateengages the lug 10 releasing the bolt and which is forced outwardly bythe spring and enters the opening 9 and the sash is locked in its closedposition.

Having thus fully described my invention what 1 claim and desire tosecure by Letters Patent is:

A sash lock of the character described comprising a cylinder, attachingmeans therefor, a sliding bolt within the cylinder and normallyoutwardly spring held, a spring plate secured'to the upper face of thecylinder and having a downwardly turned portion extending over the endof the barrel and over the end of the bolt, a laterally eXtending earcarried by the plate and having an outwardly extending lug eXtendingparallel with the bolt and beyond the end of the barrel and adapted tobe engaged by the upper sash for raising the plate to release the bolt,substantially as shown and described.

In testimony whereof I aflix my signature in presence of two witnesses.

AARON ROTHSCHILD.

Witnesses:

FLORENCE HARRIS, G. A. MILLER.

Commissioner of Patents,

Washington,-D. G.

